For the kinds of cases you already have you need
to look at "AT", or "Baby AT" motherboards.
That will get you in "the ballpark". Make sure an
"AT" board is not too big for your case.
You "may" be limited to Socket 7 types of CPU chips,
and you WILL have to buy all new "RAM" of a different type.
I am assuming you only have "Fast Page Memory" now.
If you are looking for "low-end", remember a cheap case
is only $25-$50, and may give you more "options" now and
for improvements at a later time.
                              Rick Glazier
----- Original Message -----
From: "Howard Papke" <[log in to unmask]>
> I rework donated PC's (usually 486 now) for distribution to disabled
> consumers. We have a need now for 3 or 4 faster PC's, probably 300mhz.
> I want to buy MBs to upgrade cases I have but am not sure of what the case
> types are when I look at the MB specs.

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